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1. 发明授权

US5265962A Packing bag having drawstrings 失效
标题翻译：带有束带的包装袋
公开(公告)号：US5265962A
公开(公告)日：1993-11-30
申请号：US7579
申请日：1993-01-22
申请人： Hiroshi Ogawa , Teruo Takinoue
发明人： Hiroshi Ogawa , Teruo Takinoue
IPC分类号： B65D33/28
CPC分类号： B65D33/28
摘要： A packing bag comprises a flat main body made of a synthetic resin film or sheet, sleeves formed around a top end of the main body and each divided into upper and lower chambers, and drawstrings each inserted in the respective chambers of each sleeve. A plurality of engaging portions in the form of knurled indentations are formed between the upper and lower chambers and below the lower chambers so that an increased friction and a reduced stiffness are imparted to the sleeve, in such manner that after the top end portions are gathered by pulling the drawstrings in opposite directions, the increased friction and reduced stiffness prevent the top end from opening unintentionally due to a possible resilient restoration of its ungathered state.
摘要翻译：包装袋包括由合成树脂膜或片制成的平坦主体，围绕主体的顶端形成并分别分成上下室的套筒和分别插入每个套筒的各个室中的抽绳。在上部和下部腔室之间以及下部腔室下方形成有多个接合部分，以便在套筒上赋予增加的摩擦力和减小的刚度，使得在顶部部分收集之后通过沿相反方向拉动拉绳，增加的摩擦力和刚度的减小可防止顶端由于其非卷曲状态的可能的弹性恢复而无意地打开。

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